Fix: Add proper error handling to context hook stdin processing

- Wrap stdin event handler in try/catch to catch async errors
- Output errors to stdout so Claude can see them
- Show input preview and stack trace for debugging
- Remove outer try/catch that wasn't catching async errors

src/bin/hooks/context-hook.ts

@@ -7,28 +7,37 @@
 import { contextHook } from '../../hooks/context.js';
 import { stdin } from 'process';
 
-try {
-  // Check for --index flag
-  const useIndexView = process.argv.includes('--index');
+// Check for --index flag
+const useIndexView = process.argv.includes('--index');
 
-  if (stdin.isTTY) {
-    // Running manually from terminal - print formatted output with colors
+if (stdin.isTTY) {
+  // Running manually from terminal - print formatted output with colors
+  try {
     const contextOutput = contextHook(undefined, true, useIndexView);
     console.log(contextOutput);
     process.exit(0);
-  } else {
-    // Running from hook - output plain text to stdout (for SessionStart hooks)
-    let input = '';
-    stdin.on('data', (chunk) => input += chunk);
-    stdin.on('end', () => {
+  } catch (error: any) {
+    console.error(`[claude-mem context-hook error: ${error.message}]`);
+    console.error(error.stack);
+    process.exit(1);
+  }
+} else {
+  // Running from hook - output plain text to stdout (for SessionStart hooks)
+  let input = '';
+  stdin.on('data', (chunk) => input += chunk);
+  stdin.on('end', () => {
+    try {
       const parsed = input.trim() ? JSON.parse(input) : undefined;
       const contextOutput = contextHook(parsed, false, useIndexView);
       // SessionStart hooks add stdout directly to context
       console.log(contextOutput);
       process.exit(0);
-    });
-  }
-} catch (error: any) {
-  console.error(`[claude-mem context-hook error: ${error.message}]`);
-  process.exit(0);
+    } catch (error: any) {
+      // Output error to stdout so Claude sees it
+      console.log(`[claude-mem context-hook ERROR: ${error.message}]`);
+      console.log(`Input received: ${input.substring(0, 200)}...`);
+      console.log(error.stack);
+      process.exit(1);
+    }
+  });
 }